The olive oil section at the market has a dizzy array of bottles. At the top of the heap are the extra virgin olive oils -- but there's some question as to whether that label actually corresponds to what's in the bottle.
Europe correspondent Stephen Beard talks with Bill Radke about why BHP Billiton, the world's biggest mining company, is making a hostile bid for Potash Corporation, the world's biggest fertilizer producer.
An Australian company offered billions to buy the largest producer of potash in the world -- a deal that the Canadian company declined. Why fertilizer? With growing middle classes in populous countries like India and China, fertilizer to grow all the food in those countries will soon be big business.